Adult friendly child-resistant attachment for containers used to store potentially dangerous materials
CA 2117433 C · Owner: Dirksing, Robert Stanley · Inventors: Hamilton, Peter Worthington; Oder, Reuben Earl; Dirksing, Robert Stanley
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A child resistant attachment (100) for containers used for storing and dispensing potentially dangerous materials such as, medicament tablets or the like the attachment being resistant to opening by children but readily openable by adults particularly, adults having impaired manual dexterity of their hands and/or fingers. In a particularly preferred embodiment the attachment, comprises a finish portion (10) including thread ring (10) with an integrally molded annular tab ring or collar (5) generally concentric to the thread ring and a closure (2) which is releasably secured to the thread ring by means of complementary screw threads. The tab ring or collar (5) preferably includes a pair of …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed January 19, 1993 and granted August 4, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 19, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.